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Molecular Biology
Norway
2026

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Molecular Biology 80 985 874 3 3 209 30795

Hans E. Krokan publications per year

The chart shows the history of publications by Hans E. Krokan between 1975 and 2023, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Hans E. Krokan published across 49 years, from 1975 to 2023, averaging 4.7 papers a year. Output peaked at 16 publications in 2008. 3 of the 231 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1975 to 2023. Vertical axis: number of publications, 0 to 16. Peak 16 publications in 2008. 1975: 2 publications 1976: 2 publications 1977: 3 publications 1978: 2 publications 1979: 3 publications 1980: 1 publication 1981: 3 publications 1982: 2 publications 1983: 7 publications 1984: 3 publications 1985: 5 publications 1986: 1 publication 1987: 2 publications 1988: 0 publications 1989: 2 publications 1990: 3 publications 1991: 3 publications 1992: 1 publication 1993: 4 publications 1994: 4 publications 1995: 6 publications 1996: 8 publications 1997: 8 publications 1998: 8 publications 1999: 5 publications 2000: 8 publications 2001: 6 publications 2002: 3 publications 2003: 6 publications 2004: 8 publications 2005: 7 publications 2006: 6 publications 2007: 6 publications 2008: 16 publications 2009: 9 publications 2010: 5 publications 2011: 11 publications 2012: 8 publications 2013: 10 publications 2014: 6 publications 2015: 3 publications 2016: 5 publications 2017: 3 publications 2018: 9 publications 2019: 1 publication 2020: 3 publications 2021: 1 publication 2022: 2 publications 2023: 1 publication
1975 2023

231 publications in total across all disciplines

View publications per year as a table
Hans E. Krokan: publications per year, 1975 to 2023
Year Publications
1975 2
1976 2
1977 3
1978 2
1979 3
1980 1
1981 3
1982 2
1983 7
1984 3
1985 5
1986 1
1987 2
1988 0
1989 2
1990 3
1991 3
1992 1
1993 4
1994 4
1995 6
1996 8
1997 8
1998 8
1999 5
2000 8
2001 6
2002 3
2003 6
2004 8
2005 7
2006 6
2007 6
2008 16
2009 9
2010 5
2011 11
2012 8
2013 10
2014 6
2015 3
2016 5
2017 3
2018 9
2019 1
2020 3
2021 1
2022 2
2023 1
Total 231
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Hans E. Krokan publication distribution in Molecular Biology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Molecular Biology in 2026. The highlighted bar marks where Hans E. Krokan sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 53 bars. Horizontal axis: publications, 47–56 to 564+. Vertical axis: number of scientists, 0 to 177. Most scientists, 177, have 117–126 publications. The last bar groups every scientist with 564 publications or more. The highlighted bar, 207–216 publications, is where this scientist sits. 47–56 publications: 7 scientists 57–66 publications: 17 scientists 67–76 publications: 65 scientists 77–86 publications: 90 scientists 87–96 publications: 125 scientists 97–106 publications: 131 scientists 107–116 publications: 162 scientists 117–126 publications: 177 scientists 127–136 publications: 158 scientists 137–146 publications: 158 scientists 147–156 publications: 146 scientists 157–166 publications: 159 scientists 167–176 publications: 131 scientists 177–186 publications: 110 scientists 187–196 publications: 112 scientists 197–206 publications: 100 scientists 207–216 publications: 89 scientists 217–226 publications: 98 scientists 227–236 publications: 74 scientists 237–246 publications: 72 scientists 247–256 publications: 63 scientists 257–266 publications: 53 scientists 267–276 publications: 54 scientists 277–286 publications: 49 scientists 287–296 publications: 52 scientists 297–306 publications: 43 scientists 307–316 publications: 46 scientists 317–326 publications: 41 scientists 327–336 publications: 42 scientists 337–346 publications: 31 scientists 347–356 publications: 28 scientists 357–366 publications: 29 scientists 367–376 publications: 26 scientists 377–386 publications: 24 scientists 387–396 publications: 24 scientists 397–406 publications: 14 scientists 407–416 publications: 13 scientists 417–426 publications: 20 scientists 427–436 publications: 12 scientists 437–446 publications: 20 scientists 447–456 publications: 11 scientists 457–466 publications: 10 scientists 467–476 publications: 14 scientists 477–486 publications: 14 scientists 487–496 publications: 10 scientists 497–506 publications: 13 scientists 507–516 publications: 13 scientists 517–526 publications: 2 scientists 527–536 publications: 4 scientists 537–546 publications: 6 scientists 547–556 publications: 8 scientists 557–563 publications: 6 scientists 564+ publications: 100 scientists
47–56 publications 564+

This scientist: 209 publications — 61st percentile

61% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 564 publications or more.

View publications distribution as a table
Number of Molecular Biology scientists by publication count, Research.com 2026 ranking edition. Based on 3,076 ranked scientists.
Publications Scientists This scientist
47–56 7
57–66 17
67–76 65
77–86 90
87–96 125
97–106 131
107–116 162
117–126 177
127–136 158
137–146 158
147–156 146
157–166 159
167–176 131
177–186 110
187–196 112
197–206 100
207–216 89 209
217–226 98
227–236 74
237–246 72
247–256 63
257–266 53
267–276 54
277–286 49
287–296 52
297–306 43
307–316 46
317–326 41
327–336 42
337–346 31
347–356 28
357–366 29
367–376 26
377–386 24
387–396 24
397–406 14
407–416 13
417–426 20
427–436 12
437–446 20
447–456 11
457–466 10
467–476 14
477–486 14
487–496 10
497–506 13
507–516 13
517–526 2
527–536 4
537–546 6
547–556 8
557–563 6
564+ 100
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Hans E. Krokan D-index placement in Molecular Biology in 2026

The chart shows the D-index (discipline H-index) distribution of Molecular Biology scientists ranked by Research.com in 2026. The highlighted bar marks where Hans E. Krokan sits on this spectrum.

No. of scientists
25 50 75 100 125
Bar chart with 54 bars. Horizontal axis: D-Index, 40–41 to 145+. Vertical axis: number of scientists, 0 to 131. Most scientists, 131, have 64–65 D-Index. The last bar groups every scientist with 145 D-Index or more. The highlighted bar, 80–81 D-Index, is where this scientist sits. 40–41 D-Index: 36 scientists 42–43 D-Index: 101 scientists 44–45 D-Index: 115 scientists 46–47 D-Index: 121 scientists 48–49 D-Index: 118 scientists 50–51 D-Index: 130 scientists 52–53 D-Index: 106 scientists 54–55 D-Index: 116 scientists 56–57 D-Index: 113 scientists 58–59 D-Index: 129 scientists 60–61 D-Index: 120 scientists 62–63 D-Index: 105 scientists 64–65 D-Index: 131 scientists 66–67 D-Index: 95 scientists 68–69 D-Index: 97 scientists 70–71 D-Index: 106 scientists 72–73 D-Index: 83 scientists 74–75 D-Index: 89 scientists 76–77 D-Index: 77 scientists 78–79 D-Index: 70 scientists 80–81 D-Index: 73 scientists 82–83 D-Index: 60 scientists 84–85 D-Index: 48 scientists 86–87 D-Index: 45 scientists 88–89 D-Index: 50 scientists 90–91 D-Index: 31 scientists 92–93 D-Index: 51 scientists 94–95 D-Index: 43 scientists 96–97 D-Index: 38 scientists 98–99 D-Index: 39 scientists 100–101 D-Index: 41 scientists 102–103 D-Index: 29 scientists 104–105 D-Index: 33 scientists 106–107 D-Index: 35 scientists 108–109 D-Index: 20 scientists 110–111 D-Index: 38 scientists 112–113 D-Index: 19 scientists 114–115 D-Index: 28 scientists 116–117 D-Index: 13 scientists 118–119 D-Index: 23 scientists 120–121 D-Index: 16 scientists 122–123 D-Index: 15 scientists 124–125 D-Index: 11 scientists 126–127 D-Index: 21 scientists 128–129 D-Index: 7 scientists 130–131 D-Index: 13 scientists 132–133 D-Index: 14 scientists 134–135 D-Index: 17 scientists 136–137 D-Index: 9 scientists 138–139 D-Index: 8 scientists 140–141 D-Index: 16 scientists 142–143 D-Index: 7 scientists 144 D-Index: 7 scientists 145+ D-Index: 100 scientists
40–41 D-Index 145+

This scientist: 80 D-Index — 68th percentile

68% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 145 D-Index or more.

View D-Index distribution as a table
Number of Molecular Biology scientists by D-index, Research.com 2026 ranking edition. Based on 3,076 ranked scientists.
D-Index Scientists This scientist
40–41 36
42–43 101
44–45 115
46–47 121
48–49 118
50–51 130
52–53 106
54–55 116
56–57 113
58–59 129
60–61 120
62–63 105
64–65 131
66–67 95
68–69 97
70–71 106
72–73 83
74–75 89
76–77 77
78–79 70
80–81 73 80
82–83 60
84–85 48
86–87 45
88–89 50
90–91 31
92–93 51
94–95 43
96–97 38
98–99 39
100–101 41
102–103 29
104–105 33
106–107 35
108–109 20
110–111 38
112–113 19
114–115 28
116–117 13
118–119 23
120–121 16
122–123 15
124–125 11
126–127 21
128–129 7
130–131 13
132–133 14
134–135 17
136–137 9
138–139 8
140–141 16
142–143 7
144 7
145+ 100
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Research.com Recognitions

  • 2026 - Research.com Molecular Biology in Norway Leader Award
  • 2025 - Research.com Molecular Biology in Norway Leader Award
  • 2023 - Research.com Molecular Biology in Norway Leader Award
  • Member of the Norwegian Academy of Science and Letters Biochemistry, Biophysics, and Molecular Biology
  • Member of the European Molecular Biology Organization (EMBO)
  • Member of the Norwegian Academy of Science and Letters Biochemistry, Biophysics, and Molecular Biology
  • Member of the European Molecular Biology Organization (EMBO)
  • Member of the Norwegian Academy of Science and Letters Biochemistry, Biophysics, and Molecular Biology
  • Member of the European Molecular Biology Organization (EMBO)

Overview

Hans E. Krokan is affiliated with the Norwegian University of Science and Technology in Norway. Their research spans multiple disciplines within biochemistry, genetics, and molecular biology, with contributions also in medicine.

Their primary fields of study include:

  • Biochemistry, Genetics and Molecular Biology
  • Medicine

Within these fields, Krokan has focused on several subfields such as molecular biology, oncology, hematology, genetics, and parasitology.

The main research topics covered by Krokan consist of:

  • DNA Repair Mechanisms
  • Epigenetics and DNA Methylation
  • RNA modifications and cancer
  • Acute Myeloid Leukemia Research
  • PARP inhibition in cancer therapy
  • CRISPR and Genetic Engineering
  • Single-cell and spatial transcriptomics

Some of Krokan's recent publications include:

  • Pharmacological targeting of MTHFD2 suppresses acute myeloid leukemia by inducing thymidine depletion and replication stress, 2022, Nature Cancer
  • Targeting OGG1 arrests cancer cell proliferation by inducing replication stress, 2020, Nucleic Acids Research
  • Mre11 exonuclease activity removes the chain-terminating nucleoside analog gemcitabine from the nascent strand during DNA replication, 2020, Science Advances
  • TiSA: TimeSeriesAnalysis-a pipeline for the analysis of longitudinal transcriptomics data, 2023, NAR Genomics and Bioinformatics
  • Genomic Uracil and Aberrant Profile of Demethylation Intermediates in Epigenetics and Hematologic Malignancies, 2021, International Journal of Molecular Sciences

Krokan has collaborated frequently with several researchers including Antonio Sarno, Elisée Wiita, Camilla Göktürk, Therese Pham, and Ann-Sofie Jemth.

Their work has been published in prominent scientific journals such as Nature Cancer, Nucleic Acids Research, NAR Genomics and Bioinformatics, Science Advances, and the International Journal of Molecular Sciences.

In recognition of their contributions to science, Hans E. Krokan has been named a member of the Norwegian Academy of Science and Letters in the fields of biochemistry, biophysics, and molecular biology. They are also a member of the European Molecular Biology Organization (EMBO).

Best Publications

  • ALKBH5 Is a Mammalian RNA Demethylase that Impacts RNA Metabolism and Mouse Fertility

    Guanqun Zheng;John Arne Dahl;Yamei Niu;Peter Fedorcsak

  • A susceptibility locus for lung cancer maps to nicotinic acetylcholine receptor subunit genes on 15q25

    Rayjean J. Hung;James D. Mckay;Valerie Gaborieau;Paolo Boffetta

  • Base Excision Repair

    Hans E. Krokan;Magnar Bjørås

  • DNA glycosylases in the base excision repair of DNA.

    Hans E. Krokan;Rune Standal;Geir Slupphaug

  • Alkylation damage in DNA and RNA--repair mechanisms and medical significance.

    Finn Drabløs;Emadoldin Feyzi;Per Arne Aas;Cathrine B. Vaagbø

  • Human uracil-DNA glycosylase deficiency associated with profoundly impaired immunoglobulin class-switch recombination.

    Kohsuke Imai;Geir Slupphaug;Wen I. Lee;Wen I. Lee;Patrick Revy

  • Human and bacterial oxidative demethylases repair alkylation damage in both RNA and DNA

    Per Arne Aas;Marit Otterlei;Pål Ø. Falnes;Cathrine B. Vågbø

  • The interacting pathways for prevention and repair of oxidative DNA damage.

    Geir Slupphaug;Bodil Kavli;Hans E Krokan

  • A nucleotide-flipping mechanism from the structure of human uracil-DNA glycosylase bound to DNA.

    Geir Slupphaug;Clifford D. Mol;Bodil Kavli;Andrew S. Arvai

  • Lung cancer susceptibility locus at 5p15.33

    James D McKay;Rayjean J Hung;Rayjean J Hung;Valerie Gaborieau;Paolo Boffetta

  • Uracil in DNA – occurrence, consequences and repair

    Hans E Krokan;Finn Drabløs;Geir Slupphaug

  • A Genome-wide Association Study of Lung Cancer Identifies a Region of Chromosome 5p15 Associated with Risk for Adenocarcinoma.

    Maria Teresa Landi;Nilanjan Chatterjee;Kai Yu;Lynn R. Goldin

  • Base excision repair initiation revealed by crystal structures and binding kinetics of human uracil-DNA glycosylase with DNA.

    Sudip S. Parikh;Clifford D. Mol;Geir Slupphaug;Sangeeta Bharati

  • Base excision repair of DNA in mammalian cells

    Hans E Krokan;Hilde Nilsen;Frank Skorpen;Marit Otterlei

  • Crystal structure and mutational analysis of human uracil-DNA glycosylase: structural basis for specificity and catalysis.

    Clifford D Mol;Andrew S Arvai;Geir Slupphaug;Bodil Kavli

  • Rare variants of large effect in BRCA2 and CHEK2 affect risk of lung cancer

    Yufei Wang;James D McKay;Thorunn Rafnar;Zhaoming Wang

  • The 118 A > G polymorphism in the human mu-opioid receptor gene may increase morphine requirements in patients with pain caused by malignant disease.

    P Klepstad;T T Rakvåg;S Kaasa;M Holthe

  • Post-replicative base excision repair in replication foci.

    Marit Otterlei;Emma Warbrick;Toril A. Nagelhus;Terje Haug

  • The Val158Met polymorphism of the human catechol-O-methyltransferase (COMT) gene may influence morphine requirements in cancer pain patients.

    Trude Teoline Rakvåg;Pål Klepstad;Cecilie Baar;Tor-Morten Kvam

  • hUNG2 is the major repair enzyme for removal of uracil from U:A matches, U:G mismatches, and U in single-stranded DNA, with hSMUG1 as a broad specificity backup.

    Bodil Kavli;Ottar Sundheim;Mansour Akbari;Marit Otterlei

Frequent Co-Authors

Geir Slupphaug
Geir Slupphaug Norwegian University of Science and Technology
John A. Tainer
John A. Tainer The University of Texas MD Anderson Cancer Center
Mark Lathrop
Mark Lathrop McGill University
Lars J. Vatten
Lars J. Vatten Norwegian University of Science and Technology
Rayjean J. Hung
Rayjean J. Hung Lunenfeld-Tanenbaum Research Institute
Paul Brennan
Paul Brennan International Agency For Research On Cancer
Arne Klungland
Arne Klungland Oslo University Hospital
John K. Field
John K. Field University of Liverpool
James McKay
James McKay International Agency For Research On Cancer
Chu Chen
Chu Chen Fred Hutchinson Cancer Research Center

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